(11th CLASS - 12013)
COMPUTER SCIENCE 
TIME: 20 MINUTES
NEW COURSE
OBJECTIVE 
MARKS: 17

NOTE: You have four choices for each objective type question as A B C and D. The choice which you think is correct , fill that circle in front of that question number. Use marker or pen to fill the circles. Cutting or filling two or more circles will result in zero mark in that question.

Q.NO.1

• Which of the following keys is used to cancel an operation ?
  

(A) Arrow
(B) Caps Lock
(C) Num Lock
(D) Esc

• Which of the following is the first chase of SDLC
  

(A) Design
(B) Coding
(C) Preliminary
(D) analysis

• A collection of related. web pages is called.
  

(A) Uploading
(B) Web site
(C) Downloading       
(D) Linking

• How many types of network stand are there
  

(A) 24
(B) 4
(C) 6
(D) 8

• Which of the following is not a communication media ?
  

(A) Twisted pair         
(B) UTP
(C) Microwave           
(D) Modern

• Which is the correct measurement of a modem's data transfer rate?
  

(A) Kbps        
(B) Gbps
(C) bps
(D) Mbps

• Computer based weather forecasting depends on accurate collection of data from
  

(A) Television
(B) Weather stations
(C) Radar
(D) Antena

• ……………..is used to control all ire parts of a manufacturing process
  

(A) ATM        
(B) CAD
(C) CAM
(D) MICR

• An important characteristic of RAM is that it is
  

(A) Read only
(B) Writes only
(C) Non volatile
(D) Volatile

• Which is not a type of memory
  

(A) DRAM
(B) SRAM     
(C)ROM
(D) FRAM

• CPU includes all of the following components Except
  

(A) Primary storage
(B) ALU
(C) Control unit
(D) Register

• Computer cannot boot if it does not have
  

(A) Compiler
(B) Linker
(C) Interpreter
(D) Operating system

• The Address bus is
  

(A) Bidirectional        
(B) Unidirectional      
(C) Multidirectional   
(D) Circular

• Another name for antivirus is
  

(A) Vaccine    
(B) Worm       
(C) Trojan horse
(D) DES

• Which of the following is not an antivirus program
  

(A) Redlof
(B) Norton
(C) Dr Solmon
(D) MCAfee

• Under MS-DOS a user communicate with the operating system by issuing
  

(A) Commands
(B) instructions
(C) Routines
(D) Procedure

• The world wide web was introduced
  

(A) 1960s
(B) Mid —1970s
(C) 1989
(D) 2000

(11th CLASS - 12013)
COMPUTER SCIENCE
TIME 3.10 HOURS
SUBJECTIVE
MARKS 83
SECTION-I

2. Write short answers to any Eight (8) of the following questions 16

• Differentiate between data and information
• What is joystick?
• Define barcode
• Write some benefits of using computer networks
• What is bus topology?
• What is intra net ?
• Define digital signal
• Define Ascii Code
• What is encoder and decoder
• Explain virus activation in computer
• What is password ?
• Define antivirus software

3. Write short answers to any Eight (8) of the following questions 16

• Describe the role of main memory in computer system
  
• State computer architecture
  
• List different units of CPU
  
• State the function of 1/0 unit
  
• What is SRAM ?
  
• Why does DIUM use more power ?
  
• What are system buses ?
  
• List names of address or segment registers
  
• Define Insertion point
  
• What is mail Merge?
  
• Differentiate between worksheet and work book
  
• What is cell and cell Address ?

4. Write short answers to any Six (6) of the following questions  12

• What is cyber banking
  
• What is the difference between Electronic mail and voice mail ?
  
• What is Airline system?
  
• Explain weather forecasting
  
• What is the function of SPARCO?
  
• What is plug, and play feature of  windows?
  
• Explain GUI operating system
  
• What do you Know about uploading and downloading ?
  
• Enlist the names of arch Engines

SECTION-II

Attempt any Three questions from this section  (8x3=24)

5. What are source-data entry devices 2 Discuss them in detail. (8)

6. Explain working , Advantages and Disadvantages of Bus and Star topology. (8)

7. Define data Transmission mode and explain its types. (8)

8. Explain the difference between All .And ROM, Also discuss their types (8)

9. Briefly discuss different security threats to data security. What are the solutions to these threats. (8)

SECTION-III
(PRACTICAL PART)

Attempt any three parts from A,B,C,D and E  (5x3 =15)

• Write a procedure how to change the Date and Time in window.   (5)
• Write a procedure how to change the size of paragraph to 16. (5)
• Write a procedure how to insert a Header and Footer in MS Word. (5)
• Write a procedure how to calculate the total marks of five subjects through formula (5)
• Write a procedure to enter five students marks and compute the average of these Marks. (5)